Projector and wavelength conversion device
a wavelength conversion device and projector technology, applied in the field of projectors, can solve the problems of phosphor wheel damage, phosphor wheel generally having insufficient assembly strength, and affecting the quality of the product, so as to increase the reliability of the structure of the projector.
Inactive Publication Date: 2017-05-04
CORETRONIC
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Benefits of technology
[0005]One object of the invention is to provide a projector having a wavelength conversion device. The wavelength conversion device includes a weighting structure to guarantee a dynamic balance while the wavelength conversion device is in high-speed rotation. Further, through the weighting structure, the adhering area for assembling the components of the projector is increased and the reliability of the structure(s) of the projector is increased.
[0006]Another object of the invention is to provide an illumination system having a wavelength conversion device. The wavelength conversion device includes a weighting structure to guarantee a dynamic balance while the wavelength conversion device is in high-speed rotation. Further, through the weighting structure, the adhering area for assembling the components of the projector is increased and the reliability of the structure(s) of the projector is increased.
[0022]In summary, through designing the wavelength conversion device of the projector of the embodiment of the invention to be equipped with the weighting structure connected to the substrate of the wavelength conversion element and having the first joint surface jointed / engaged with the light transmissive element, not only the dynamic balance is guaranteed while the wavelength conversion device is in high-speed rotation but also an additional adhering area between the light transmissive element and the wavelength conversion element is further increased, so that the light transmissive element may be assembled to the wavelength conversion element firmly. Therefore, while the wavelength conversion device is in high-speed rotation, the light transmissive element detaching from the through slot of the wavelength conversion element is avoided and the reliability of the overall structure of the projector is further improved.
Problems solved by technology
While being driven by the drive motor, the phosphor wheel may have a high-speed rotation; and therefore, if the dynamic balance of the phosphor wheel is not guaranteed, a loud noise may generated, the quality of the product may be affected and even the phosphor wheel may have damage.
In addition, the phosphor wheel generally has insufficient assembly strength; therefore, the phosphor wheel may have a detachment while in high-speed rotation.
Method used
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[0039]In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. In this regard, directional terminology, such as “top”, “bottom”, “front”, “back”, etc., is used with reference to the orientation of the Figure(s) being described. The components of the invention can be positioned in a number of different orientations. As such, the directional terminology is used for purposes of illustration and is in no way limiting. On the other hand, the drawings are only schematic and the sizes of components may be exaggerated for clarity. It is to be understood that other embodiments may be utilized and structural changes may be made without departing from the scope of the invention. Also, it is to be understood that the phraseology and terminology used herein are for the purpose of description and should not b...
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A projector includes an illumination system having light source device and wavelength conversion device. The light source device provides a first beam. The wavelength conversion device includes wavelength conversion element, light transmissive element, and weighting structure. The wavelength conversion element includes substrate, at least one wavelength conversion region, and through slot. The at least one wavelength conversion region is disposed on the substrate and converts a portion of the first beam into a second beam. The light transmissive element is disposed at the through slot to form a light transmissive region. The remaining portion of the first beam passes through the light transmissive region, and an illumination light beam is constituted by the second beam and the remaining portion of the first beam. The weighting structure is connected to the substrate and has a first joint surface, and the first joint surface and the light transmissive element are jointed.
Description
FIELD OF THE INVENTION[0001]The invention relates to a projector, and more particularly to a projector having a wavelength conversion device.BACKGROUND OF THE INVENTION[0002]In the present laser projection device, pure light source required by projector is generated by stimulating phosphor with beam emitted from laser diode with qualified efficiency. Typically, the phosphor is coated on a substrate to form a phosphor wheel, and then the phosphor on the substrate is stimulated by the laser beam emitted from the laser light source to generate lights with different colors. Further, the laser beam may also directly pass through the phosphor wheel via the hollow slot of the substrate. The phosphor wheel may rotate by a driving of a drive motor, so that the phosphor coated on the substrate and representing different color regions correspond to the laser beam emitted from the laser light source thereby generating the corresponding light.[0003]While being driven by the drive motor, the phos...
Claims
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IPC IPC(8): H04N9/31G02B26/00G03B21/20
CPCH04N9/3111G02B26/008G03B21/204H04N9/3158
Inventor HSU, PI-TSUNG
Owner CORETRONIC
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